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<h5><a href="https://github.com/urbanjost/M_strings">[UP]</a></h5>
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<H1><HR><I>Manual Reference Pages &nbsp;-&nbsp;</I><NOBR>chomp (3m_strings)</NOBR><HR></H1>
</CENTER>
<A name=0>

     <H3>NAME</H3>

</A>
<BLOCKQUOTE>
<B>chomp</B>(3f) - [M_strings:TOKENS] Tokenize a string, consuming it one
token per call
(LICENSE:PD)
<P>
</BLOCKQUOTE>
<A name=contents></A><H3>CONTENTS</H3></A>
<BLOCKQUOTE>
<A HREF=#1>Synopsis</A><BR>
<A HREF=#2>Description</A><BR>
<A HREF=#3>Options</A><BR>
<A HREF=#4>Returns</A><BR>
<A HREF=#5>Examples</A><BR>
<A HREF=#6>Author</A><BR>
<A HREF=#7>License</A><BR>
</BLOCKQUOTE>
<A name=8>

     <H3>SYNOPSIS</H3>

</A>
<BLOCKQUOTE>
function <B>chomp</B>(source_string,token[,delimiters])
<P>
<PRE>
    character(len=*)                     :: source_string
    character(len=:),intent(out)         :: token
    character(len=:),intent(in),optional :: delimiters
    integer                              :: chomp
<P>
</PRE>
</BLOCKQUOTE>
<A name=2>

     <H3>DESCRIPTION</H3>

</A>
<BLOCKQUOTE>
The <B>CHOMP</B>(3f) function is used to isolate sequential tokens in a
string, SOURCE_STRING. These tokens are delimited in the string by at
least one of the characters in DELIMITERS. This routine consumes the
source_string one token per call. It returns <B>-1</B> when complete. The
default delimiter list is "space,tab,carriage return,newline".
</BLOCKQUOTE>
<A name=3>

     <H3>OPTIONS</H3>

</A>
<BLOCKQUOTE>
<TABLE cellpadding=3>
<TR valign=top><TD colspan=2>
<B>SOURCE_STRING</B> </TD></TR><TR valign=top><TD width=6%>&nbsp;</TD><TD>
string to tokenize
</TD></TR>
<TR valign=top><TD colspan=2>
<B>DELIMITERS</B> </TD></TR><TR valign=top><TD width=6%>&nbsp;</TD><TD>
list of separator characters
</TD></TR>
<TR></TR></TABLE></BLOCKQUOTE>
<A name=4>

     <H3>RETURNS</H3>

</A>
<BLOCKQUOTE>
<TABLE cellpadding=3>
<TR valign=top><TD width=6% nowrap>
<B>TOKEN</B> </TD><TD valign=bottom>
returned token
</TD></TR>
<TR valign=top><TD width=6% nowrap>
<B>CHOMP</B> </TD><TD valign=bottom>
status flag. 0 = success, <B>-1</B> = no tokens remain
</TD></TR>
<TR></TR></TABLE></BLOCKQUOTE>
<A name=5>

     <H3>EXAMPLES</H3>

</A>
<BLOCKQUOTE>
Sample program:
<P>
<PRE>
   program demo_chomp
<P>
   use M_strings, only : chomp
   implicit none
   character(len=100)            :: inline
   character(len=:),allocatable  :: token
   character(len=*),parameter    :: delimiters=&#146; ;,&#146;
   integer                       :: ios
   integer                       :: icount
   integer                       :: itoken
      icount=0
      do        ! read lines from stdin until end-of-file or error
         read (unit=*,fmt="(a)",iostat=ios) inline
         if(ios.ne.0)stop
         icount=icount+1
         itoken=0
         write(*,*)&#146;INLINE &#146;,trim(inline)
         do while ( chomp(inline,token,delimiters).ge. 0)
            itoken=itoken+1
            print *, itoken,&#146;TOKEN=[&#146;//trim(token)//&#146;]&#146;
         enddo
      enddo
<P>
   end program demo_chomp
<P>
</PRE>
<BLOCKQUOTE>
sample input file
<P>
<PRE>
    this is a test of chomp; A:B :;,C;;
<P>
</PRE>
sample output file
<P>
<PRE>
    &gt; INLINE     this is a test of chomp; A:B :;,C;;
    &gt;           1 TOKEN=[this]
    &gt;           2 TOKEN=[is]
    &gt;           3 TOKEN=[a]
    &gt;           4 TOKEN=[test]
    &gt;           5 TOKEN=[of]
    &gt;           6 TOKEN=[chomp]
    &gt;           7 TOKEN=[A:B]
    &gt;           8 TOKEN=[:]
    &gt;           9 TOKEN=[C]
<P>
</PRE>
</BLOCKQUOTE>
</BLOCKQUOTE>
<A name=6>

     <H3>AUTHOR</H3>

</A>
<BLOCKQUOTE>
John S. Urban
</BLOCKQUOTE>
<A name=7>

     <H3>LICENSE</H3>

</A>
<BLOCKQUOTE>
Public Domain
</BLOCKQUOTE>
<P><HR>
<TABLE width=100%><TR> <TD width=33%><I>Nemo Release 3.1</I></TD> <TD width=33% align=center>chomp (3m_strings)</TD> <TD align=right width=33%><I>April 30, 2022</I></TD> </TR></TABLE><FONT SIZE=-1>Generated by <A HREF="http://www.squarebox.co.uk/download/manServer.shtml">manServer 1.08</A> from d264e305-3827-4456-8a51-b8e3bbab920d using man macros.</FONT>
<br><br><center><img src="images/chomp.gif"></center>
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